Markus Himmel 5a34ffb9b0 chore: upstream Nat material from mathlib (#7971) ... This PR upstreams much of the material from `Mathlib/Data/Nat/Init.lean` and `Mathlib/Data/Nat/Basic.lean`.		2025-04-16 06:55:32 +00:00
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BlaAttr.lean
Tst.lean	chore: upstream Nat material from mathlib (#7971)	2025-04-16 06:55:32 +00:00